On my Ubuntu 10.10 system, after configuring an external CRT to clone my desktop over S-Video, I've lost my desktop icon and right clicking on it does not show the menu or the menu bar.

I've tried to resolve this with following commands:

sudo apt-get install ubuntu-desktop
sudo apt-get install gnome-panel
sudo chown -R $ USER: $ USER /Scrivania

Using the following sequence of commands I've gotten the main menu back, but nothing I have found so far will get back my desktop:

mkdir ~/.oldpanel
mv ~/.gconf/apps/panel ~/.oldpanel
gconftool-2 --shutdown
pkill gnome-panel
sudo apt-get install --reinstall ubuntu-desktop

Have you any idea how to resolve my problem? Thanks in advance.